Publications associées à pH prediction and control in bioprocesses using mid-infrared spectroscopy

Silicon microresonator arrays: A comprehensive study on fabrication techniques and pH-controlled stress-induced variations in cantilever stiffness

Luis Guillermo Villanueva Torrijo, Annalisa De Pastina

We introduce a detailed design and fabrication process of Silicon microcantilever arrays for biomolecular detection in liquid environment, utilized with laser readout. We present typical fabrication problems and provide related solutions to obtain high qua ...

Amsterdam2024

Probing Water Dissociation and Oxygen Replacement on Partially Oxygen-Covered Cu(111) by Reflection Absorption Infrared Spectroscopy

Rainer Beck, Mateusz Suchodol, Harmina Vejayan

The presence of chemisorbed oxygen on the Cu(111) surface is known to strongly reduce the activation barrier for water dissociation as compared to bare Cu(111). Here, we present direct experimental evidence for the hydrogen abstraction mechanism responsibl ...

2023

Water Orientation at the Anatase TiO2 Nanoparticle Interface: A Probe of Surface pKa Values

Arianna Marchioro, Marie Bischoff

The acid-base properties of surfaces significantly influence catalytic and (photo)electrochemical processes. Estimation of acid dissociation constants (pKa values) for colloids is commonly performed through electroanalytical techniques or spectroscopic met ...

AMER CHEMICAL SOC2022

Ruthenium on phosphorous-modified alumina as an effective and stable catalyst for catalytic transfer hydrogenation of furfural

Davide Ferri, Oliver Kröcher, Gaël Peng

Supported ruthenium was used in the liquid phase catalytic transfer hydrogenation of furfural. To improve the stability of Ru against leaching, phosphorous was introduced on a Ru/Al2O3 based catalyst upon impregnation with ammonium hypophosphite followed b ...

2020

Thermodynamics and kinetics of protonated merocyanine photoacids in water

Rosario Scopelliti, Kay Severin, Farzaneh Fadaei Tirani, Daniel Maria Busiello, Euro Solari, Cristian Pezzato, Stefano Zamuner, Cesare Berton

Metastable-state photoacids (mPAHs) are chemical species whose photo-activated state is long-lived enough to allow for proton diffusion. Liao's photoacid (1) represents the archetype of mPAHs, and is being widely used on account of its unique capability to ...

2020

Precipitation Pathways: In Situ Liquid SAXS Studies on the Early Stage of Calcium Carbonate Formation (Part. Part. Syst. Charact. 6/2019)

Andrea Testino, Agnese Carino, Mohammad Reza Andalibi

In article number 1800482, Andrea Testino and co‐workers investigate calcium carbonate clusters in‐situ by small angle X‐ray scattering using a liquid jet setup at constant pH, temperature, and saturation level. The saturation is kept constant and below th ...

2020

Fe(II)-Catalyzed Ligand-Controlled Dissolution of Iron(hydr)oxides

Janet Gordon Hering

Dissolution of iron(III)phases is a key process in soils, surface waters, and the ocean. Previous studies found that traces of Fe(II) can greatly increase ligand controlled dissolution rates at acidic pH, but the extent that this also occurs at circumneutr ...

AMER CHEMICAL SOC2019

Mid infrared gas spectroscopy using efficient fiber laser driven photonic chip-based supercontinuum

Tobias Kippenberg, Camille Sophie Brès, Davide Grassani, Hairun Guo, Clemens Herkommer, Eirini Tagkoudi

Directly accessing the middle infrared, the molecular functional group spectral region, via supercontinuum generation processes based on turn-key fiber lasers offers the undeniable advantage of simplicity and robustness. Recently, the assessment of the coh ...

2019

Nanophotonic Supercontinuum-Based Mid-Infrared Dual-Comb Spectroscopy

Luc Thévenaz, Tobias Kippenberg, Camille Sophie Brès, Junqiu Liu, Hairun Guo, Wenle Weng, Wolfgang Hänsel

An optically stabilized dual-comb system at telecom wavelength is used to drive a mid-infrared spectroscopy for parallel gas-phase detection in the functional group region from 2800-3600 cm -1 . A coherent broadband intensity-enhanced spectrum in the mid-i ...

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pH prediction and control in bioprocesses using mid-infrared spectroscopy

Silicon microresonator arrays: A comprehensive study on fabrication techniques and pH-controlled stress-induced variations in cantilever stiffness

Probing Water Dissociation and Oxygen Replacement on Partially Oxygen-Covered Cu(111) by Reflection Absorption Infrared Spectroscopy

Water Orientation at the Anatase TiO2 Nanoparticle Interface: A Probe of Surface pKa Values

Ruthenium on phosphorous-modified alumina as an effective and stable catalyst for catalytic transfer hydrogenation of furfural

Thermodynamics and kinetics of protonated merocyanine photoacids in water

Precipitation Pathways: In Situ Liquid SAXS Studies on the Early Stage of Calcium Carbonate Formation (Part. Part. Syst. Charact. 6/2019)

Fe(II)-Catalyzed Ligand-Controlled Dissolution of Iron(hydr)oxides

Effects of water-soluble organic carbon on aerosol pH

Mid infrared gas spectroscopy using efficient fiber laser driven photonic chip-based supercontinuum

Nanophotonic Supercontinuum-Based Mid-Infrared Dual-Comb Spectroscopy

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Chattez avec Graph Search

Water Orientation at the Anatase TiO2 Nanoparticle Interface: A Probe of Surface pKa Values

Probing Water Dissociation and Oxygen Replacement on Partially Oxygen-Covered Cu(111) by Reflection Absorption Infrared Spectroscopy

Ruthenium on phosphorous-modified alumina as an effective and stable catalyst for catalytic transfer hydrogenation of furfural

Silicon microresonator arrays: A comprehensive study on fabrication techniques and pH-controlled stress-induced variations in cantilever stiffness

Nanophotonic Supercontinuum-Based Mid-Infrared Dual-Comb Spectroscopy

Effects of water-soluble organic carbon on aerosol pH

Thermodynamics and kinetics of protonated merocyanine photoacids in water

Precipitation Pathways: In Situ Liquid SAXS Studies on the Early Stage of Calcium Carbonate Formation (Part. Part. Syst. Charact. 6/2019)

Mid infrared gas spectroscopy using efficient fiber laser driven photonic chip-based supercontinuum

Fe(II)-Catalyzed Ligand-Controlled Dissolution of Iron(hydr)oxides